Carbureter for internal-combustion engines.



E. J. KANE.

CARBURETER FOB INTERNAL COMBUSTION ENGINES.

4 APPLICATION FILED DEC. 19, 1912. I Lwkfio Patented June 29, 1915.

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APPLICATION FILED DEC. 19, I912.

Patented June 29, 1915.

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APPLICATION FILED DEC. I9, 1912.

Patented June 29, 1915.

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EDMUND J'. KANE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,[DO INTERNATIONAL HARVESTER CORPORATION, A CORPORATION OF NEW JERSEY.

CARBURETER FOR INTERNAL-COMBUSTION ENGINES,

Specification of Letters Patent.

Patented June 2%, 1915.

a plication filedDecember 19,1912. Seria1N0.737,637. a i i p .hifii fiTo ally/17mm it may concern Be it known that I, EDMUND J. KANE, a

-citizen of the United States, residing at Austin, Chicago, in thecounty of Cook and State of Illinois, have invented certain new anduseful Improvements in Carbureters for Internal-Combustion Engines, ofwhich the following is a full, clear, and exact specification.

My invention relates to carbureters designed to use a heavy hydrocarbonoil, such as kerosene, for fuel, wherein a quantity of water is admittedto the mixing chamber under heavy load conditions, and wherein it isnecessary to automatically control the admission of water in proportionto the amount of fuel consumed; the object of my invention being toprovide a mechanism controlled by the engine governor that will providea proper combustible mixture of hydrocarbon, air and water, simple in-con-' struction and eflicient in operation. These objects are attainedby means of the mechanism illustrated by the accompanying drawings, inwhich-- Figure 1 is a side elevation of an internal combustion enginehaving my invention forming a part thereof; Fig. 2 is an enlarged sideelevation of the carburetor mechanism; Fig. 3 is a side elevation ofFig. 2, partly in section; Fig. 4 is a cross section of Fig. 3 alongline A-B; Fig. 5 is a top plan view of Fig. 2; and Fig. 6 is a sideelevation of the upper part of Fig. 2 and designed to illustrate theoperation of the air throttling valve.

The same reference characters designate like parts throughout theseveral views.

' 1 represents the crank case of an internal combustion engine, 2 theengine crank shaft journaled in bearings carried by the crank case, 3the cam shaft, and 4 the power cylinder including a cylinder head Any ofthe common forms of centrifugal governor mechanism may be used and maybe incloscd by a casing 6, and includes a rock shaft 7 journaled inbearings carried by the casing and having a depending arm 8 securedthereto.

9 represents the body of a vertically arranged mixing chamber, having aflange 10 at the lower end thereof whereby it is secured to the cylinderhead 5, and a constricted central portion 11.

12 represents a constant level fuel feed of a. vertical conduit 21.

cup secured to the body of the mixing chamber by means of bolts 13, anddivided, by means of a partition 12, into two separate receptacles, onecommunicating with a source 12 of gasolene supply and the other With asource 12 of l'zerosene or other heavy hydrocarbon supply, and havingthe usual outflow pipes 12 connected therewith whereby a predeterminedlevel of fuel is maintained in each cup.-

14 represents feed nozzles communicating with the fuel receptacles bymeans of vertically arranged conduits 15 in a common way, the nozzlesbeing directed along lines radial to the axis of the mixing chamber andin the same plane as the constricted portion thereof, and having theflow of liquid therethrough controlled by needle valves 16.

17 represents a constant level water feed cup-secured to the body of themixing chamber, near the upper end thereof, and communicating with asource 17 of water supply, and having an overflow pipe 18, a feed nozzle19 controlled by a needle valve 20, and communicating with the cup bymeans The upper end of the mixing chamber is open to the atmosphere, and22 represents a butterfly valve secured to a stem 23 journaled inopposite walls of the casing and having the axis thereof in thesameplane as that of the feed nozzle 19, and having an arm 24 secured to oneend thereof that is connected to the lever 8 of the means of a rod 25.

26 represents an arm loosely journaled governor mechanism by upon thestem adjacent the arm 24, and 27" represents a laterally extendingfinger integral with arm 24; and adapted to engage with arm 26 when theformer has been moved by the governor mechanism through a predetermineddegree of angularity.

28 represents a mixture throttling butterfly valve mounted upon a stem29 journaled in opposite walls of the n'iixing chamber, near the lowerend thereof, having an arm 30 secured to one end that is provided with aseries of openings 31 therein that may selectively receive 'a pin 32whereby the arm is connected with the lower end of a rod 33, adjustableas to length, the opposite end of the rod being connected with the arm26, carried by the valve stem 93, by means of a pin 34. The valve 28 isnormally turned by means of a spring 35 to an open position, with theupper end thereof resting against a pin 36 carried by the wall of themixing chamber.

In operation, with the engine running under no load, or light load, theair throttling valve and the mixture throttling valveare' substantiallyclosed in the same direction, as indicated by dotted lines in Fig. 2,thus preventing the drawing or sucking in of water, the resulting fuelsupply being rich in quality. As the load is increased and a greaterquantity of fuel is required, the valves are turned clockwise toward anopen position by the governor mechanism, and when they reach a positionas shown by the dotted lines in Fig. 6, the finger 27 disengages withthe arm 26. Upon a further movement of the valve 22 in the samedirection, the mixture throttling valve 28 is left wide open, while thepartial closing of valve 22 by a continued clockwise movement tends tocreate a vacuum in the mixer, resulting in the drawing in of more fueland water, when the speed of the engine falls below normal and theengine is overloaded.

What I claim as my invention, and desire to secure bv Letters Patent,is:

1. A carbureter for internal combustion engines having. in combination,avertically arranged mixing chamber communicating with an enginecylinder and with the.atmosphere, an air throttling valve including avalve stem journaled in opposite walls of said mixing chamber near theupper end thereof, an arm secured to said valve stem and means wherebysaid arm may be connected with an engine governor mechanism, a secondarm -loosely mounted upon said stem and adapted to, be turned axially bysaid first named arm when the latter has reached a predetermined degreeof angular movement, a mixture throttling valve including a valve stemjournaled in the walls ofsaid chamber near the lower end thereof, an armsecured to said stem, an operative connection between said arm and saidsecond arm, a spring operative to turn said mixture throttling valvetoward an open position, and a fuel feed mechanism communicating withsaid mixing chamber.

2. A carbureter for internal combustion engines having, in combination,a mixing chamber communicating with an engine cylinder and with theatmosphere, fuel feed mechanism communicating with said mixing chamber,rocking air throttling and mixture throttling valves mounted in saidchamber upon opposite sides of said fuel feed mecha: nism and includingvalve stems, means whereby said air throttling valve may be connectedwith an engine governor mechanism in a manner to be controlled thereby,a spring operative to normally retain said mixture throttling valve inan open position,

an arm loosely mounted upon the stem of .said air throttling valve, asecond arm secured to the stem of said mixture throttling valve, and alink connection between said arms and said air throttling valve having alimited angular movement independent of said mixture throttling valve.

3. In a carbureter for internal combustion engines, the combination of amixing chamber, an air throttling valve, a mixture throt tling valve,and a connection between said valves whereby said valves may be actuatedtogether or independently of e'ach'other automatically, said valvesbeing controlled in accordance with engine working conditions.

4. In a carbureter for internal combustion engines, the combination of amixing chamber, air throttling and mixture throttling valves, and aconnection between said valves whereby said valves are actuated togetherunder light load conditions, and one of said valves actuatedindependently of the other under heavy load conditions to vary thedegree of vacuum in said mixing chamber;

In a carbureter for internal combustion engines, the combination of amixing chamber, interconnected air throttling and mixture throttlingvalves in said chamber, said air throttling valve having two closedpositions and said mixture throttling valve one closed position, saidvalves being actuated in accordance with engine working conditions, andmeans whereby said mixture throttling valve is'arrested in open positionwhile said other valve is free to move to 10 vary the degree of vacuumin said chamber.

(3. In a carbureter for internal combustion engines, the combination ofa mixing chamber, fuel and water feed mechanisms associated therewith,an air throttling valve 5 adapted to control the degree of vacuum insaid chamber and the admission of water, a mixture throttling valvecontrolling the ad missionof fuel, and an operative connection betweensaid valves whereby said valves are actuated together under certainconditions and one independently of the other under other conditions.

7.- In a carbureter for internal combustion engines, the combination ofa mixing chain- 5 ber, awater supply mechanism associated therewith, anda valve having two closed positions for controlling the vacuum in saidmixing chamber, one in which water is permitted to enter said chamberand the other preventing the admission of water.-

8. In combination, a governor, and a carburetor having a mixing chamber.a water supply mechanism associated therewith, and a valve controlled bysaid governor having two closed positions for controlling the vacuum insaid mixing chamber, one in which'water is permitted to enter saidchamof water. r

, ber,

9. In a carbureter for internal combustion engines, the combination of amixing chamber, Water supply means associated therewith, and avalvehaving two closed positions for controlling the vacuum insaid mixingchamber in a manner to permit the vacuum to extend to said Water supplymeans under certain operating conditions and to prevent the extension ofthe vacuum to said Water supply means under different operatingconditions.

10. In a carburetor for internal combustion engines, the combination ofa mixing chamtherewith, and interconnected air throttling and mixturethrottling valves in said chamfuel and Water supply means associatedher, said air throttling valve having two closed positions forcontrolling the vacuum in said mixing chamber in a manner to permit thevacuum to extend to said Water supply means under certain operatingconditions and to prevent the extension of the vacuum to said watersupply means under different operating conditions.

Chicago, 111., Dec. 2, 1912.

In testimony whereof I afiix my signature, in the presence of twoWitnesses.

EDMUND J. KANE.

Witnesses:

'LEo J. Fons'rnx,

JAMES MCGANN.

